This constitutes a profound Riddle of Holiness. Note η Σφίγξ = Υραίος = 781 = 71 x 11. See authorities for special meanings of these words.*
Those only understand it who combine in themselves the extremes of Moral Idea, identifying them through transcendental overcoming of the antinomy. They must have gone further yet, beyond the fundamental opposition of the sexes. The male must have completed himself and become androgyne; the female become gynander.
This incompleteness imprisons the soul. To think “I am not woman, but man” or vice versa, is to limit one’s self, to set a bar to one’s motion. It is the root of the ‘shutting-up’ which culminates in becoming “Mary inviolate” or a “Black Brother”.
* “η Σφίγξ is ‘the Sphinx,’ or ‘the strangler.’ Υραίος is not a Greek word but adds to 781, and appears to be a transliteration of ‘uræus.'”—Hymenaeus Beta, Commentaries on the Holy Books and Other Papers (N.B. Though ‘uræus’ indeed seems more relevant, I note that υραῖος appears at least in Skeat’s as a Greek word meaning “aged, gray” listed as a root for the word “gray”—Librarian)